Embracing the need to cut carbon emissions should be seen not as a threat but as a “way to spark business innovation,” she said.The federal Clean Air Act, the basis of the EPA’s powers to set rules, has produced $30 in benefits for every dollar spent in its name, she added....Responding to a question about the climate impact of the 830,000 barrel per day pipeline, McCarthy first jokingly pretended to walk away from the podium before responding....McCarthy said the Obama administration was examining all aspects of the pipeline proposal.“It is not supposed to be easy,” she said. “It is supposed to be hard, it is supposed to be all interests coming together and screaming at the top of their lungs like three crazy children.”